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texture-re
| Author | SHA1 | Date | |
|---|---|---|---|
|
2c712cca96 |
2
gl-api.h
2
gl-api.h
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@ -28,7 +28,7 @@ typedef struct {
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typedef struct {
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GLushort width;
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GLushort height;
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GLuint color;
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GLuint color; /* This is the PVR texture format */
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GLubyte env;
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GLubyte filter;
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GLubyte mip_map;
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4
gl-cap.c
4
gl-cap.c
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@ -228,7 +228,7 @@ void APIENTRY glGetFloatv(GLenum pname, GLfloat *params) {
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const GLbyte *glGetString(GLenum name) {
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switch(name) {
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case GL_VENDOR:
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return "KallistiOS";
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return "KallistiOS / Kazade";
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case GL_RENDERER:
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return "PowerVR2 CLX2 100mHz";
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@ -237,7 +237,7 @@ const GLbyte *glGetString(GLenum name) {
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return "KGL 1.x";
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case GL_EXTENSIONS:
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return "GL_ARB_framebuffer_object, GL_ARB_multitexture";
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return "GL_ARB_framebuffer_object, GL_ARB_multitexture, GL_ARB_texture_rg";
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}
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return "GL_KOS_ERROR: ENUM Unsupported\n";
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262
gl-texture.c
262
gl-texture.c
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@ -197,12 +197,12 @@ void APIENTRY glCompressedTexImage2D(GLenum target,
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if(border)
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_glKosThrowError(GL_INVALID_VALUE, "glCompressedTexImage2D");
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if(internalformat != GL_UNSIGNED_SHORT_5_6_5_VQ)
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if(internalformat != GL_UNSIGNED_SHORT_5_6_5_VQ_TWID)
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if(internalformat != GL_UNSIGNED_SHORT_4_4_4_4_VQ)
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if(internalformat != GL_UNSIGNED_SHORT_4_4_4_4_VQ_TWID)
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if(internalformat != GL_UNSIGNED_SHORT_1_5_5_5_VQ)
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if(internalformat != GL_UNSIGNED_SHORT_1_5_5_5_VQ_TWID)
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if(internalformat != GL_UNSIGNED_SHORT_5_6_5_VQ_EXT)
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if(internalformat != GL_UNSIGNED_SHORT_5_6_5_VQ_TWID_EXT)
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if(internalformat != GL_UNSIGNED_SHORT_4_4_4_4_VQ_EXT)
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if(internalformat != GL_UNSIGNED_SHORT_4_4_4_4_VQ_TWID_EXT)
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if(internalformat != GL_UNSIGNED_SHORT_1_5_5_5_VQ_EXT)
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if(internalformat != GL_UNSIGNED_SHORT_1_5_5_5_VQ_TWID_EXT)
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_glKosThrowError(GL_INVALID_OPERATION, "glCompressedTexImage2D");
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if(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE] == NULL)
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@ -228,6 +228,160 @@ void APIENTRY glCompressedTexImage2D(GLenum target,
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sq_cpy(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data, data, imageSize);
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}
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static GLint _cleanInternalFormat(GLint internalFormat) {
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switch (internalFormat) {
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case GL_ALPHA:
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/* case GL_ALPHA4:
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case GL_ALPHA8:
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case GL_ALPHA12:
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case GL_ALPHA16:*/
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return GL_ALPHA;
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case 1:
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case GL_LUMINANCE:
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/* case GL_LUMINANCE4:
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case GL_LUMINANCE8:
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case GL_LUMINANCE12:
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case GL_LUMINANCE16:*/
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return GL_LUMINANCE;
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case 2:
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case GL_LUMINANCE_ALPHA:
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/* case GL_LUMINANCE4_ALPHA4:
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case GL_LUMINANCE6_ALPHA2:
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case GL_LUMINANCE8_ALPHA8:
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case GL_LUMINANCE12_ALPHA4:
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case GL_LUMINANCE12_ALPHA12:
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case GL_LUMINANCE16_ALPHA16: */
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return GL_LUMINANCE_ALPHA;
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/* case GL_INTENSITY:
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case GL_INTENSITY4:
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case GL_INTENSITY8:
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case GL_INTENSITY12:
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case GL_INTENSITY16:
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return GL_INTENSITY; */
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case 3:
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return GL_RGB;
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case GL_RGB:
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/* case GL_R3_G3_B2:
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case GL_RGB4:
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case GL_RGB5:
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case GL_RGB8:
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case GL_RGB10:
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case GL_RGB12:
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case GL_RGB16: */
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return GL_RGB;
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case 4:
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return GL_RGBA;
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case GL_RGBA:
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/* case GL_RGBA2:
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case GL_RGBA4:
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case GL_RGB5_A1:
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case GL_RGBA8:
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case GL_RGB10_A2:
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case GL_RGBA12:
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case GL_RGBA16: */
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return GL_RGBA;
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/* Support ARB_texture_rg */
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case GL_RED:
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/* case GL_R8:
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case GL_R16:
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case GL_RED:
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case GL_COMPRESSED_RED: */
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return GL_RED;
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/* case GL_RG:
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case GL_RG8:
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case GL_RG16:
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case GL_COMPRESSED_RG:
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return GL_RG;*/
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default:
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return -1;
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}
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}
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static GLuint _determinePVRFormat(GLint internalFormat, GLenum type) {
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/* Given a cleaned internalFormat, return the Dreamcast format
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* that can hold it
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*/
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switch(internalFormat) {
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case GL_ALPHA:
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case GL_LUMINANCE:
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case GL_LUMINANCE_ALPHA:
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case GL_RGBA:
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/* OK so if we have something that requires alpha, we return 4444 unless
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* the type was already 1555 (1-bit alpha) in which case we return that
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*/
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return (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) ?
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PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED :
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PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED;
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case GL_RED:
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case GL_RGB:
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/* No alpha? Return RGB565 which is the best we can do without using palettes */
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return PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED;
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default:
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return 0;
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}
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}
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typedef void (*TextureConversionFunc)(GLbyte*, GLshort*);
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static void _rgba8888_to_argb4444(GLbyte* source, GLshort* dest) {
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*dest = (
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(source[3] & 0x11110000) << 8 |
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(source[0] & 0x11110000) << 4 |
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(source[1] & 0x11110000) |
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(source[2] & 0x11110000) >> 4
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);
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}
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static void _rgb888_to_rgb565(GLbyte* source, GLshort* dest) {
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*dest = ((source[0] & 0b11111000) << 8) | ((source[1] & 0b11111100) << 3) | (source[2] >> 3);
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}
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static void _r8_to_rgb565(GLbyte* source, GLshort* dest) {
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*dest = (source[0] & 0b11111000) << 8;
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}
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static TextureConversionFunc _determineConversion(GLint pvr_format, GLenum format, GLenum type) {
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switch(pvr_format) {
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case PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED: {
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if(type == GL_UNSIGNED_BYTE && format == GL_RGB) {
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return _rgb888_to_rgb565;
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} else if(type == GL_UNSIGNED_BYTE && format == GL_RED) {
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return _r8_to_rgb565;
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}
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} break;
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case PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED: {
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if(type == GL_UNSIGNED_BYTE && format == GL_RGBA) {
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return _rgba8888_to_argb4444;
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}
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} break;
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default:
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break;
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}
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return 0;
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}
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static GLint _determineStride(GLenum format, GLenum type) {
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switch(type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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return (format == GL_RED) ? 1 : (format == GL_RGB) ? 3 : 4;
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case GL_UNSIGNED_SHORT:
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return (format == GL_RED) ? 2 : (format == GL_RGB) ? 6 : 8;
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case GL_UNSIGNED_SHORT_5_6_5_REV:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_UNSIGNED_SHORT_1_5_5_5_REV:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_REV:
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return 2;
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}
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return -1;
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}
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void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
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GLsizei width, GLsizei height, GLint border,
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GLenum format, GLenum type, const GLvoid *data) {
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@ -238,9 +392,10 @@ void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
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if(format != GL_RGBA)
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_glKosThrowError(GL_INVALID_ENUM, "glTexImage2D");
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if(internalFormat != GL_RGB)
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if(internalFormat != GL_RGBA)
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internalFormat = _cleanInternalFormat(internalFormat);
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if(internalFormat == -1) {
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_glKosThrowError(GL_INVALID_VALUE, "glTexImage2D");
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}
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GLint w = width;
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if(w == 0 || (w & -w) != w) {
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@ -260,9 +415,6 @@ void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
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if(border)
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_glKosThrowError(GL_INVALID_VALUE, "glTexImage2D");
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if(format != internalFormat)
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_glKosThrowError(GL_INVALID_OPERATION, "glTexImage2D");
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if(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE] == NULL)
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_glKosThrowError(GL_INVALID_OPERATION, "glTexImage2D");
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@ -271,12 +423,15 @@ void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
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return;
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}
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/* Calculate the format that we need to convert the data to */
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GLuint pvr_format = _determinePVRFormat(internalFormat, type);
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if(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data) {
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/* pre-existing texture - check if changed */
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if(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->width != width ||
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->height != height ||
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->mip_map != level ||
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color != type) {
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color != pvr_format) {
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/* changed - free old texture memory */
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pvr_mem_free(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data);
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data = NULL;
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@ -290,58 +445,59 @@ void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->width = width;
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->height = height;
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->mip_map = level;
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color = type;
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color = pvr_format;
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data = pvr_mem_malloc(bytes);
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}
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if(data) {
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switch(type) {
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case GL_BYTE: /* Texture Formats that need conversion for PVR */
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case GL_UNSIGNED_BYTE:
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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case GL_FLOAT: {
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uint16 *tex;
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/* Let's assume we need to convert */
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GLboolean needsConversion = GL_TRUE;
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tex = (uint16 *)malloc(width * height * sizeof(uint16));
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/*
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* These are the only formats where the source format passed in matches the pvr format.
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* Note the REV formats + GL_BGRA will reverse to ARGB which is what the PVR supports
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*/
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if(format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && internalFormat == GL_RGBA) {
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needsConversion = GL_FALSE;
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} else if(format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV && internalFormat == GL_RGBA) {
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needsConversion = GL_FALSE;
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} else if(format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && internalFormat == GL_RGB) {
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needsConversion = GL_FALSE;
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}
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if(!tex) {
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_glKosThrowError(GL_OUT_OF_MEMORY, "glTexImage2D");
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_glKosPrintError();
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if(!data) {
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/* No data? Do nothing! */
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return;
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} else if(!needsConversion) {
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/* No conversion? Just copy the data, and the pvr_format is correct */
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sq_cpy(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data, data, bytes);
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return;
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} else {
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TextureConversionFunc convert = _determineConversion(
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internalFormat,
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format,
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type
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);
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if(!convert) {
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_glKosThrowError(GL_INVALID_OPERATION, "glTexImage2D");
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return;
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}
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switch(internalFormat) {
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case GL_RGB:
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_glKosPixelConvertRGB(type, width, height, (void *)data, tex);
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color = (PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED);
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sq_cpy(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data, tex, bytes);
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break;
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GLshort* dest = GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data;
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GLbyte* source = data;
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GLint stride = _determineStride(format, type);
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case GL_RGBA:
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_glKosPixelConvertRGBA(type, width, height, (void *)data, tex);
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GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->color = (PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED);
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sq_cpy(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data, tex, bytes);
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break;
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}
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free(tex);
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}
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break;
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case GL_UNSIGNED_SHORT_5_6_5: /* Texture Formats that do not need conversion */
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case GL_UNSIGNED_SHORT_5_6_5_TWID:
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case GL_UNSIGNED_SHORT_1_5_5_5:
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case GL_UNSIGNED_SHORT_1_5_5_5_TWID:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_TWID:
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sq_cpy(GL_KOS_TEXTURE_UNIT[GL_KOS_ACTIVE_TEXTURE]->data, data, bytes);
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break;
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default: /* Unsupported Texture Format */
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if(stride == -1) {
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_glKosThrowError(GL_INVALID_OPERATION, "glTexImage2D");
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break;
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return;
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}
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for(GLuint i = 0; i < bytes; ++i) {
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convert(source, dest);
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dest++;
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source += stride;
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}
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}
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}
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|
|
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65
include/gl.h
65
include/gl.h
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@ -334,52 +334,43 @@ __BEGIN_DECLS
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/* GL KOS Texture Matrix Enable Bit */
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#define GL_KOS_TEXTURE_MATRIX 0x002F
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/* GL KOS Texture Color Modes */
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#define GL_UNSIGNED_SHORT_5_6_5 (PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_5_6_5_REV (PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_5_5_5_1 (PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_5_5_5_1_REV (PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_1_5_5_5 (PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_1_5_5_5_REV (PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_4_4_4_4 (PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_4_4_4_4_REV (PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
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#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
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#define GL_UNSIGNED_SHORT_5_6_5 0x8363
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#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
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#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
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#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
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#define GL_UNSIGNED_SHORT_5_6_5_TWID (PVR_TXRFMT_RGB565)
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#define GL_UNSIGNED_SHORT_5_6_5_REV_TWID (PVR_TXRFMT_RGB565)
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_TWID (PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_REV_TWID (PVR_TXRFMT_ARGB1555)
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||||
#define GL_UNSIGNED_SHORT_1_5_5_5_TWID (PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_REV_TWID (PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_TWID (PVR_TXRFMT_ARGB4444)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_REV_TWID (PVR_TXRFMT_ARGB4444)
|
||||
/*
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||||
* Dreamcast specific compressed + twiddled formats.
|
||||
* We use constants from the range 0xEEE0 onwards
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||||
* to avoid trampling any real GL constants (this is in the middle of the
|
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* any_vendor_future_use range defined in the GL enum.spec file.
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*/
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#define GL_UNSIGNED_SHORT_5_6_5_TWID_EXT 0xEEE0
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#define GL_UNSIGNED_SHORT_5_5_5_1_TWID_EXT 0XEEE1
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#define GL_UNSIGNED_SHORT_1_5_5_5_TWID_EXT 0xEEE2
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#define GL_UNSIGNED_SHORT_4_4_4_4_TWID_EXT 0xEEE3
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||||
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||||
#define GL_UNSIGNED_SHORT_5_6_5_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_5_6_5_REV_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_5_5_5_1_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
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#define GL_UNSIGNED_SHORT_5_5_5_1_REV_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_REV_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_REV_VQ (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_5_6_5_VQ_EXT 0xEEE4
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_VQ_EXT 0xEEE5
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_VQ_EXT 0xEEE6
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_VQ_EXT 0xEEE7
|
||||
|
||||
#define GL_UNSIGNED_SHORT_5_6_5_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_RGB565)
|
||||
#define GL_UNSIGNED_SHORT_5_6_5_REV_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_RGB565)
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_REV_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_REV_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB1555)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB4444)
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_REV_VQ_TWID (PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_ARGB4444)
|
||||
|
||||
#define GL_RGB565_TWID (PVR_TXRFMT_RGB565 | PVR_TXRFMT_TWIDDLED)
|
||||
#define GL_ARGB1555_TWID (PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_TWIDDLED)
|
||||
#define GL_ARGB4444_TWID (PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_TWIDDLED)
|
||||
#define GL_UNSIGNED_SHORT_5_6_5_VQ_TWID_EXT 0xEEE8
|
||||
#define GL_UNSIGNED_SHORT_5_5_5_1_VQ_TWID_EXT 0xEEE9
|
||||
#define GL_UNSIGNED_SHORT_1_5_5_5_VQ_TWID_EXT 0xEEEA
|
||||
#define GL_UNSIGNED_SHORT_4_4_4_4_VQ_TWID_EXT 0xEEEB
|
||||
|
||||
#define GL_RED 0x1903
|
||||
#define GL_GREEN 0x1904
|
||||
#define GL_BLUE 0x1905
|
||||
#define GL_ALPHA 0x1906
|
||||
#define GL_RGB 0x1907
|
||||
#define GL_RGBA 0x1908
|
||||
#define GL_LUMINANCE 0x1909
|
||||
#define GL_LUMINANCE_ALPHA 0x190A
|
||||
#define GL_BGRA 0x80E1
|
||||
|
||||
#define GLbyte char
|
||||
#define GLshort short
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user